He rubbed away the rust on the surfaces of the irontank with a piece of sandpaper last week.
上星期他用一张沙纸把铁箱表面的锈蹭掉了。
2
The dynamics model of the special molten irontank car was established by using multi-body dynamics software package SIMPACK, and the curving performance was analyzed.
利用SIMPACK动力学仿真软件建立了特种铁水罐车的动力学模型，对其曲线通过性能进行了分析计算。
3
Thousands of people milled around streets littered with gutted buses, iron rods and other random objects that together formed flimsy barricades that would have done nothing to stop a tank.